Home / 8,136.45-12,205.08-2,292.30

Finding the Fourth Proportional to 8,136.45, 12,205.08 and 2,292.30

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Solution

The fourth proportional to 8,136.45, 12,205.08 and 2,292.30 is: 3,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.45 : 12,205.08 = 2,292.30 : x
  2. Step 2: Convert to fraction form
    8,136.45/12,205.08 = 2,292.30/x
  3. Step 3: Cross multiply
    8,136.45x = 12,205.08 × 2,292.30
  4. Step 4: Simplify right side
    8,136.45x = 27,977,704.88
  5. Step 5: Solve for x
    x = 27,977,704.88/8,136.45
  6. Step 6: Final answer
    x = 3,438.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.